When you watch movie,enjoy the drama,attend meeting,or have classes, the product can help you to hear the sound clearly and loudly.While in forest,if you want to hear very slight sound,it will be a good choice. Specification 1.Max sound output:110±5dB 2.Sound gain: ≥30dB 3.Total harmonic wave distortion: ≤10% 4.Frequency range:300-4000Hz 5.Input noise: ≤40dB 6.Voltage:d.c.1.5V 7.Current: ≤4mA Package Contents 1 unit of ear sound amplifier 1 instruction manual 2 units of AG5 batteries 3 units of earplug of different size
Trustpilot
2 months ago
2 weeks ago
